The Journal of thoracic and cardiovascular surgery · 2019
Propensity-score adjusted comparison of pathologic nodal upstaging by robotic, video-assisted thoracoscopic, and open lobectomy for non-small cell lung cancer.
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Kneuertz Peter J, Cheufou Danjouma H, D'Souza Desmond M, Mardanzai Khaled, Abdel-Rasoul Mahmoud, Theegarten Dirk, Moffatt-Bruce Susan D, Aigner Clemens, Merritt Robert E
Аннотация
OBJECTIVE: To assess the effectiveness of intraoperative lymph node (LN) staging by comparing upstaging between robotic-assisted surgery, video-assisted thoracoscopic surgery (VATS), and open thoracotomy approach for lobectomy for non-small cell lung cancer.
METHODS: We retrospectively analyzed 1053 patients with clinical stage N0/N1 non-small cell lung cancer who underwent lobectomy at 2 centers between 2011 and 2018. Propensity score adjustment by inverse probability of treatment weighting was used to balance baseline characteristics. The primary end point was LN upstaging.
RESULTS: A total of 911 patients (254 robotic, 296 VATS, and 261 open) were included in the inverse probability of treatment weighting adjusted analysis. The overall rate of LN upstaging was highest with open lobectomy (21.8%), followed by robotic (16.2%), and VATS (12.3%) (P = .03). Mediastinal N2 upstaging was observed in similar frequencies (open 6.9% vs robotic 6.3% vs VATS 4.4%; P = .6). No differences were seen for total LN counts, but were observed in the number of stations sampled (mean, open 4.0 vs robotic 3.8 vs VATS 3.6; P = .001). On multivariate analysis, LN upstaging was lower for VATS compared with open (odds ratio, 0.50; 95% confidence interval, 0.29-0.85), but not different between robotic and open (odds ratio, 0.72; 95% confidence interval, 0.44-1.18). No significant differences were seen in mediastinal N2 upstaging between groups.
CONCLUSIONS: Pathologic LN upstaging following lobectomy for clinically N0/N1 NSCLC remains high. Compared with a traditional thoracotomy approach, robotic lobectomy was associated with similar and VATS with lower overall nodal upstaging. A thorough evaluation of hilar and mediastinal LNs remains critical to ensure accurate staging by detection of occult LN metastases.
METHODS: We retrospectively analyzed 1053 patients with clinical stage N0/N1 non-small cell lung cancer who underwent lobectomy at 2 centers between 2011 and 2018. Propensity score adjustment by inverse probability of treatment weighting was used to balance baseline characteristics. The primary end point was LN upstaging.
RESULTS: A total of 911 patients (254 robotic, 296 VATS, and 261 open) were included in the inverse probability of treatment weighting adjusted analysis. The overall rate of LN upstaging was highest with open lobectomy (21.8%), followed by robotic (16.2%), and VATS (12.3%) (P = .03). Mediastinal N2 upstaging was observed in similar frequencies (open 6.9% vs robotic 6.3% vs VATS 4.4%; P = .6). No differences were seen for total LN counts, but were observed in the number of stations sampled (mean, open 4.0 vs robotic 3.8 vs VATS 3.6; P = .001). On multivariate analysis, LN upstaging was lower for VATS compared with open (odds ratio, 0.50; 95% confidence interval, 0.29-0.85), but not different between robotic and open (odds ratio, 0.72; 95% confidence interval, 0.44-1.18). No significant differences were seen in mediastinal N2 upstaging between groups.
CONCLUSIONS: Pathologic LN upstaging following lobectomy for clinically N0/N1 NSCLC remains high. Compared with a traditional thoracotomy approach, robotic lobectomy was associated with similar and VATS with lower overall nodal upstaging. A thorough evaluation of hilar and mediastinal LNs remains critical to ensure accurate staging by detection of occult LN metastases.